package com.woniu.utils;
import com.google.gson.Gson;
import com.qiniu.common.QiniuException;
import com.qiniu.http.Response;
import com.qiniu.storage.BucketManager;
import com.qiniu.storage.Configuration;
import com.qiniu.storage.Region;
import com.qiniu.storage.UploadManager;
import com.qiniu.storage.model.DefaultPutRet;
import com.qiniu.util.Auth;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
@Component
public class QiNiuUploadUtils {
    @Value("${qiNiu.accessKey}")
    private String accessKey;
    @Value("${qiNiu.secretKey}")
    private String secretKey;
    @Value("${qiNiu.bucket}")
    private String bucket;

    private static String ACCESSKEY;
    private static String SECRETKEY;
    private static String BUCKET;

    // 对象创建之后执行该方法
    @PostConstruct
    public void init(){
        ACCESSKEY = this.accessKey;
        SECRETKEY = this.secretKey;
        BUCKET = this.bucket;
    }
    /**
     * 图片上传
     * @param uploadBytes
     * @param filename
     */
    public static void uploadFile(byte[] uploadBytes, String filename){
        //构造一个带指定 Region 对象的配置类
        Configuration cfg = new Configuration(Region.region2());
        cfg.resumableUploadAPIVersion = Configuration.ResumableUploadAPIVersion.V2;// 指定分片上传版本
        //...其他参数参考类注释
        UploadManager uploadManager = new UploadManager(cfg);
        //...生成上传凭证，然后准备上传
//        String accessKey = "qX9D4Hh9n8_a7qwb5Sw4N-VXHO8o2g5Db9jCHR-n";
//        String secretKey = "cIVNC93CV_Gac2oXJPkjQGdrkynxrSSmLkKjd-Yr";
//        String bucket = "wnxt1";
        //默认不指定key的情况下，以文件内容的hash值作为文件名 文件的名称
        String key = filename;
        // 签名（密码）
        Auth auth = Auth.create(ACCESSKEY, SECRETKEY);
        String upToken = auth.uploadToken(BUCKET);
        try {
            Response response = uploadManager.put(uploadBytes, key, upToken);
            //解析上传成功的结果
            DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
            System.out.println(putRet.key);
            System.out.println(putRet.hash);
        } catch (QiniuException ex) {
            Response r = ex.response;
            System.err.println(r.toString());
            try {
                System.err.println(r.bodyString());
            } catch (QiniuException ex2) {
                //ignore
            }
        }
    }
    /**
     * 删除文件
     * @param fileName
     */
    public static void deleteFile(String fileName){
        //构造一个带指定 Region 对象的配置类
        Configuration cfg = new Configuration(Region.region2());
        //...其他参数参考类注释
//        String accessKey = "qX9D4Hh9n8_a7qwb5Sw4N-VXHO8o2g5Db9jCHR-n";
//        String secretKey = "cIVNC93CV_Gac2oXJPkjQGdrkynxrSSmLkKjd-Yr";
//        String bucket = "wnxt1";
        Auth auth = Auth.create(ACCESSKEY, SECRETKEY);
        BucketManager bucketManager = new BucketManager(auth, cfg);
        try {
            bucketManager.delete(BUCKET, fileName);
        } catch (QiniuException ex) {
            //如果遇到异常，说明删除失败
            System.err.println(ex.code());
            System.err.println(ex.response.toString());
        }
    }
}